No Picture Aep Destination (Bax-L+Tus Aep) (B) - Sony KJ-32W7 C Series Service Manual

Troubleshooting

3-4-2 : No Picture AEP Destination (BAX-L+TUS AEP) (b)

No Picture AEP
VIDEO 2
No Picture
NG
[GREY]
Check if input
OSD si grey out
OK [NOT
GREYED]
NG
Check wave
J3104 along signal path at pin
between C3018 and
IC9001
OK
Confirm
NG
Analog RF
input
working
OK
Brownie
[IC9001]
Problem
NG J3104
Check J3104
Connectivity
Connection
Problem
OK
Detailed check parts
at VIDEOB_DET
Path [C7026] NG
OK
J3104
Parts Broken
Connector
Problem
OK
Detailed check all parts
NG
GREEN:
[VD3127, R3014, R3021]
Check signal Detailed SDIF
between path
NG
IC9001 and Check between
IC9000 IC9001 and
[R8570] IC9000
OK
Ayu2 [IC9000]
Problem
Component
No Picture
NG
[LOW]
Check if input OSD Check J3104
is GREY OUT Connection
OK
OK [HIGH]
Detailed check parts
at VIDEOB_DET path
[C7026] and CR_DET
path [C7025]
OK
J3104
Connector
Problem
OK
Check wave Detailed check all parts
NG
between J3104 along signal path at pin
C3018/C3019 and GREEN:
IC9001 [VD3127, R3014, R3021]
OK
NG
Confirm
HDMI EQ
HDMI input
[IC5009]
working
Problem
OK
Check signal
Confirm
between
NG
Analog RF
IC9001 and
input
IC9000
working
[R8570]
OK OK
Brownie
Ayu2 [IC9000]
[IC9001]
Problem
Problem
NG J3104
Connectivity
Problem
NG
Parts Broken
NG
Detailed SDIF
path
NG
Check between
IC9001 and
IC9000